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refactor(compiler): add abstract NodeWithI18n class to ML parsing (#33318)

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This abstract class will be useful for identifying nodes that
can hold i18n data.

PR Close #33318
This commit is contained in:
Pete Bacon Darwin 2019-10-22 15:05:44 +01:00 committed by Matias Niemelä
parent 58b3a51e64
commit aaa08f7be3
1 changed files with 23 additions and 11 deletions
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34
packages/compiler/src/ml_parser/ast.ts
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@ -15,16 +15,24 @@ export interface Node {
visit(visitor: Visitor, context: any): any;
}
export class Text implements Node {
constructor(public value: string, public sourceSpan: ParseSourceSpan, public i18n?: I18nMeta) {}
export abstract class NodeWithI18n implements Node {
constructor(public sourceSpan: ParseSourceSpan, public i18n?: I18nMeta) {}
abstract visit(visitor: Visitor, context: any): any;
}
export class Text extends NodeWithI18n {
constructor(public value: string, sourceSpan: ParseSourceSpan, i18n?: I18nMeta) {
super(sourceSpan, i18n);
}
visit(visitor: Visitor, context: any): any { return visitor.visitText(this, context); }
}
export class Expansion implements Node {
export class Expansion extends NodeWithI18n {
constructor(
public switchValue: string, public type: string, public cases: ExpansionCase[],
public sourceSpan: ParseSourceSpan, public switchValueSourceSpan: ParseSourceSpan,
public i18n?: I18nMeta) {}
sourceSpan: ParseSourceSpan, public switchValueSourceSpan: ParseSourceSpan, i18n?: I18nMeta) {
super(sourceSpan, i18n);
}
visit(visitor: Visitor, context: any): any { return visitor.visitExpansion(this, context); }
}
@ -36,18 +44,22 @@ export class ExpansionCase implements Node {
visit(visitor: Visitor, context: any): any { return visitor.visitExpansionCase(this, context); }
}
export class Attribute implements Node {
export class Attribute extends NodeWithI18n {
constructor(
public name: string, public value: string, public sourceSpan: ParseSourceSpan,
public valueSpan?: ParseSourceSpan, public i18n?: I18nMeta) {}
public name: string, public value: string, sourceSpan: ParseSourceSpan,
public valueSpan?: ParseSourceSpan, i18n?: I18nMeta) {
super(sourceSpan, i18n);
}
visit(visitor: Visitor, context: any): any { return visitor.visitAttribute(this, context); }
}
export class Element implements Node {
export class Element extends NodeWithI18n {
constructor(
public name: string, public attrs: Attribute[], public children: Node[],
public sourceSpan: ParseSourceSpan, public startSourceSpan: ParseSourceSpan|null = null,
public endSourceSpan: ParseSourceSpan|null = null, public i18n?: I18nMeta) {}
sourceSpan: ParseSourceSpan, public startSourceSpan: ParseSourceSpan|null = null,
public endSourceSpan: ParseSourceSpan|null = null, i18n?: I18nMeta) {
super(sourceSpan, i18n);
}
visit(visitor: Visitor, context: any): any { return visitor.visitElement(this, context); }
}